期刊
BIOSCIENCE BIOTECHNOLOGY AND BIOCHEMISTRY
卷 75, 期 10, 页码 1889-1893出版社
TAYLOR & FRANCIS LTD
DOI: 10.1271/bbb.110182
关键词
quillaja saponin; immunostimulating; macrophage; Escherichia coli infection; toxicity
类别
资金
- Ministry of Education, Culture, Sports, Science, and Technology of Japan [12660122]
- Grants-in-Aid for Scientific Research [12660122] Funding Source: KAKEN
Quillaja saponin (QS) was examined for its immunostimulating effect on mice and humans after oral administration. Mice fed QS for 24h significantly increased in chemotactic and phagocytosis activities of peritoneal macrophages. This enhancing effect in both activities continued for 4-d after QS administration. Mice fed QS for 24h prior to an interperitoneal challenge with Escherichia coli showed a higher survival rate than the control group. Peripheral blood analysis of volunteers showed significant increases in chemotactic and phagocytosis activities after oral administration of QS for 7d. Furthermore, the volunteers did not show significant changes in immunoglobulin, transaminase, IL-alpha, or TNF-alpha levels, or in serum albumin concentrations. Thus orally administered QS can effectively enhance the immune response through stimulation of macrophages without adverse effects.
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